for years now ive been
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I have been a teacher for about twenty years now.
廉追芬布： 不可,for+时间段 是现在完成时的标志词,不能用于过去完成时 现在完成时表示现在之前业已完成的动作,虽然其效果或影响仍然存在但已不再继续,但是有一些现在完成时的句子,在后面加上for+一段时间,则现在完成时的动作就表示延续性. Thomas has studied Russian. (现在不再学俄语) Thomas has studied Russian for three years. (=Thomas began to study Russian three years ago, and is still studying it now.
衡阳县15718043884： 那么在一般情况下for和since的主句一定用现在完成时对吗?for和since的主句还一定要用延续性动词,对吗 - ？
廉追芬布： 这是一种不准确的说法.请看下面的例子:He has already been here for two years. 指到现在为止两年,就用现在完成时.During the last 30 years, great changes have taken place in our country. 指从现在向前的30年,也就是到现在为为止的30年...
衡阳县15718043884： FOR YEARS NOW - ？
廉追芬布： 多年来
衡阳县15718043884： 英语动词变位题,根据句子变化可能有“现在完成进行式”1.I - _____(learn) English for 2 years.Now I give up it2.It - ____(snow) heavily all morning,and it - ___... - ？
廉追芬布：[答案] 1.have learned 后面那个应该是 give it up ,没有give up it 这种说法,代词要放在它们之间 2.has been snowing is still snowing. 3.have traveled 4.has already drank 建议:看下关于完成式的语法书吧
衡阳县15718043884： For many years now是什么意思 - ？
廉追芬布： many years from now 许多年以后 例句:1.For one thing, statisticians would have to make assumptions about the relative value of, say, the environment and new buildings-not just today, but many years from now. 首先,比如环境和新建筑这类事物,统计学家们也许得假定出它们的相关价值不仅仅是现今的价值,也包括今后许多年的.
衡阳县15718043884： I have lived here for several years now 这里加now和不加有什么区别. - ？
廉追芬布： 加与不加与整个句子意思和语法的正确无太太关系.即,加也对,不加也对.
衡阳县15718043884： for用在什么情况下?i have lived here for twenty year.为什么用 - ？
廉追芬布： 您好 for加时间段 since加时间点 通常用于现在完成时
衡阳县15718043884： 初二英语现在完成时句型转换,快.1、He has learned English (for 5 years)括号部分提问()()()he()english?2、i bought a new bike just now(用just改写... - ？
廉追芬布：[答案] 很高兴能够在这里回答你的问题, 1 How long has he learned English? 2 I have just bought a new bike. 3 He has been away for an hour.
衡阳县15718043884： 英语中现在完成时+FOR表一段时间与现在完成进行时的区别?如I have taught English for 3 years.I have been teaching English for 3 years.区别在哪?两种表达... - ？
廉追芬布：[答案] I have taught English for 3 years. 表示教英语这动作从过去某时开始持续了多久. I have been teaching English for 3 years. 表示教英语这动作从过去某时延续到现在,也可能还要持续下去.
衡阳县15718043884： I have been there last year - ？
廉追芬布： 不可以这样搭配的完成时一般与for+一段时间,或者since从句现在完成时: 概念:过去发生或已经完成的动作对现在造成的影响或结果,或从过去已经开始,持续到现在的动作或状态. 时间状语:recently, lately, since…for…,in the past few years, etc. 基本结构:have/has + done 否定形式:have/has + not +done.
